An-Najah Staff

The purpose of this study was to determine Body Mass Index (BMI), Resting Metabolic Rate (RMR), proposed equation for predicting (RMR), and constructing Norms for )BMI( and (RMR). Of 20th Arab Volleyball for men championship in Jordan. The study sample consisted of (186) volleyball players, data collected of (age, weight, height) based on the formal scripts of championship, for measuring (BMI) the following equation was used: BMI (kg/m²)= weight kg/(height in meters)² and De Lorenzo et.al (1999) equation was used for measuring (RMR) as follow: RMR (kcal/d)= -857+9(wt in kg) +11.7(Ht in cm) Obtained data was computerized, then analyzed using means, standard deviation, R², and percentile Ranks. The results indicated a good level both (BMI) and (RMR), where the mean were respectively (23.38)kg/m², and (2067.60)kcal/d, and the best level of (BMI) was (20.76)kg/m², and (2500)kcal/d for (RMR). The proposed equation to predicting (RMR) based on height of players as follow: RMR (kcal/d)= (-1704.67) + ((2007.513) (Ht meter)).